Terminal discovery method, terminal, server, base station, management entity, and system

Abstract

A terminal discovery method, a terminal, a server, a base station, a management entity, and a system are provided that pertain to the field of wireless communications. The method includes acquiring a discovery resource; monitoring, according to the discovery resource, a second message sent by at least one second terminal; acquiring a service identity of the second terminal according to the second message; and acquiring description information of the second terminal from a server according to the service identity of the second terminal.

What is claimed is: 
     
       1. A terminal discovery method, wherein the method comprises:
 sending, by a terminal, a first request to a management entity such that the management entity sends a second request to a base station, wherein the second request comprises an identity of the terminal that is used to determine whether the terminal is authorized to discover other terminals; and 
 receiving, by the terminal, a discovered resource from the base station or the management entity when the terminal is authorized to discover the other terminals, wherein the discovered resource is a resource that is allocated by the base station according to the second request. 
 
     
     
       2. The method according to  claim 1 , wherein the discovered resource is received using a Radio Resource Control (RRC) message, wherein the discovered resource is the resource that the base station allocates after receiving the second request, wherein the second request is an S1-Application Protocol (S1-AP) message comprising an indication that is used to instruct the base station to allocate the discovered resource, to instruct the base station to allocate the discovered resource to the terminal, instruct the base station to allocate the discovered resource and send the discovered resource to the terminal, or instruct the base station to allocate the discovered resource to the terminal and send the discovered resource to the terminal. 
     
     
       3. The method according to  claim 1 , wherein the discovered resource is received using a non-access stratum message, wherein the discovered resource is the discovered resource that the base station sends to the management entity using a container after receiving the second request, wherein the second request is an S1-Application Protocol (S1-AP) message comprising an indication used to instruct the base station to allocate the discovered resource, instruct the base station to allocate the discovered resource to the terminal, instruct the base station to allocate the discovered resource and send the discovered resource to the management entity, or instruct the base station to allocate the discovered resource to the terminal and send the discovered resource to the management entity. 
     
     
       4. The method according to  claim 1 , wherein sending, by the terminal, the first request to the management entity comprises sending, by the terminal, a third request to a server such that the server sends a fourth request to the management entity, wherein the third request comprises a globally unique temporary identity (GUTI) of the terminal, and wherein the server sends the fourth request to the management entity according to the GUTI. 
     
     
       5. A terminal discovery method, wherein the method comprises:
 receiving, by a base station, a request sent by a management entity, wherein the request comprises an identity of a terminal that is used to determine whether the terminal is authorized to discover other terminals; 
 allocating, by the base station, a discovered resource to the terminal according to the request when the terminal is authorized to discover the other terminals, wherein the discovered resource is a resource used when the terminal sends a message; and 
 sending, by the base station, the discovered resource to the terminal or the management entity such that the management entity sends the discovered resource to the terminal. 
 
     
     
       6. The method according to  claim 5 , wherein the request is an S1-Application Protocol (S1-AP) message comprising an indication, that is used to instruct the base station to allocate the discovered resource, instruct the base station to allocate the discovered resource to the terminal, or instruct the base station to allocate the discovered resource and send the discovered resource to the terminal, or instruct the base station to allocate the discovered resource to the terminal and send the discovered resource to the terminal, and wherein, the discovered resource is sent to the terminal using a Radio Resource Control (RRC) message. 
     
     
       7. The method according to  claim 5 , wherein the request is an S1-Application Protocol (S1-AP) message comprising an indication that is used to instruct the base station to allocate the discovered resource, instruct the base station to allocate the discovered resource to the terminal, instruct the base station to allocate the discovered resource and send the discovered resource to the management entity, or instruct the base station to allocate the discovered resource to the terminal and send the discovered resource to the management entity, and wherein the discovered resource is sent to the management entity using a container such that the management entity sends the discovered resource to the terminal using a non-access stratum message. 
     
     
       8. A terminal discovery method, wherein the method comprises:
 receiving, by a management entity, a first request sent by a terminal or a server, wherein the first request comprises an identity of the terminal that is used to determine whether the terminal is authorized to discover other terminals; and 
 sending, by the management entity, a second request to a base station when the terminal is authorized to discover the other terminals, wherein the base station allocates and sends a discovered resource to the terminal according to the second request, wherein the discovered resource is a resource used when the terminal sends a message. 
 
     
     
       9. The method according to  claim 8 , wherein the second request is an S1-Application Protocol (S1-AP) message comprising an indication that is used to instruct the base station to allocate the discovered resource, instruct the base station to allocate the discovered resource to the terminal, instruct the base station to allocate the discovered resource and send the discovered resource to the terminal, or instruct the base station to allocate the discovered resource to the terminal and send the discovered resource to the terminal such that the base station sends the discovered resource to the terminal using a Radio Resource Control (RRC) message. 
     
     
       10. The method according to  claim 8 , wherein the second request is an S1-Application Protocol (S1-AP) message comprising an indication that is used to instruct the base station to allocate the discovered resource, instruct the base station to allocate the discovered resource to the terminal, instruct the base station to allocate the discovered resource and send the discovered resource to the management entity, or instruct the base station to allocate the discovered resource to the terminal and send the discovered resource to the management entity; receiving, by the management entity, the discovered resource that is sent by the base station using a container; and sending, by the management entity, the discovered resource to the terminal by using a non-access stratum message. 
     
     
       11. A terminal, wherein the terminal comprises:
 a processor; 
 a transmitter coupled to the processor and configured to send a first request to a server such that the server sends a second request to a management entity, and the management entity sends a third request to a base station, wherein the third request comprises an identity of the terminal that is used to determine whether the terminal is authorized to discover other terminals; and 
 a receiver coupled to the processor and configured to receive, from the base station or the server, a discovered resource when the terminal is authorized to discover the other terminals, wherein the discovered resource is a resource that is allocated by the base station according to the third request. 
 
     
     
       12. The terminal according to  claim 11 , wherein the discovered resource that is sent by the base station is received using a Radio Resource Control (RRC) message, wherein the discovered resource is the resource that the base station allocates after receiving the third request, wherein the third request is an S1-Application Protocol (S1-AP) message comprising an indication that is used to instruct the base station to allocate the discovered resource, instruct the base station to allocate the discovered resource to the terminal, instruct the base station to allocate the discovered resource and send the discovered resource to the terminal, or instruct the base station to allocate the discovered resource to the terminal and send the discovered resource to the terminal. 
     
     
       13. The terminal according to  claim 11 , wherein the discovered resource that is sent by the management entity is received using a non-access stratum message, wherein the discovered resource is the discovered resource that the base station sends to the management entity using a container after receiving the third request, wherein the third request is an S1-Application Protocol (S1-AP) message comprising an indication that is used to instruct the base station to allocate the discovered resource, instruct the base station to allocate the discovered resource to the terminal, instruct the base station to allocate the discovered resource and send the discovered resource to the management entity, or instruct the base station to allocate the discovered resource to the terminal and send the discovered resource to the management entity. 
     
     
       14. The terminal according to  claim 11 , wherein the first request comprises a globally unique temporary identity (GUTI) of the terminal such that the server sends the second request to the management entity according to the GUTI. 
     
     
       15. A base station, wherein the base station comprises:
 a receiver configured to receive a request sent by a management entity, wherein the request comprises an identity of a terminal that is used to determine whether the terminal is authorized to discover other terminals; 
 a processor coupled to the receiver and configured to allocate a discovered resource to the terminal according to the request when the terminal is authorized to discover the other terminals based on the identity of the terminal, wherein the discovered resource is a resource used when the terminal sends a message; and 
 a transmitter coupled to the processor and configured to send the discovered resource, to the terminal or the management entity such that the management entity sends the discovered resource to the terminal. 
 
     
     
       16. The base station according to  claim 15 , wherein the request is an S1-Application Profile (S1-AP) message comprising an indication that is used to instruct the base station to allocate the discovered resource, instruct the base station to allocate the discovered resource to the terminal, instruct the base station to allocate the discovered resource and send the discovered resource to the terminal, or instruct the base station to allocate the discovered resource to the terminal and send the discovered resource to the terminal, and wherein the discovered resource is sent to the terminal using a Radio Resource Control (RRC) message. 
     
     
       17. The base station according to  claim 15 , wherein the request is an S1-Application Protocol (S1-AP) message comprising an indication that is used to instruct the base station to allocate the discovered resource, instruct the base station to allocate the discovered resource to the terminal, instruct the base station to allocate the discovered resource and send the discovered resource to the management entity, or instruct the base station to allocate the discovered resource to the terminal and send the discovered resource to the management entity, and wherein the discovered resource is sent to the management entity using a container such that the management entity sends the discovered resource to the terminal using a non-access stratum message. 
     
     
       18. A management entity, wherein the management entity comprises:
 a processor; 
 a receiver coupled to the processor and configured to receive a first request sent by a terminal or a server, wherein the first request comprises an identity of the terminal that is used to determine whether the terminal is authorized to discover other terminals; and 
 a transmitter coupled to the processor and configured to send a second request to a base station according to the first request such that the base station allocates and sends a discovered resource to the terminal according to the second request; 
 wherein the receiver is configured to receive a discovered resource that is allocated and sent by the base station according to the second request when the terminal is authorized to discover the other terminals, 
 wherein the transmitter is configured to send the discovered resource to the terminal, and 
 wherein the discovered resource is a resource used when the terminal sends a second message. 
 
     
     
       19. The management entity according to  claim 18 , wherein the second request is an S1-Application Protocol (S1-AP) comprising an indication that is used to instruct the base station to allocate the discovered resource, instruct the base station to allocate the discovered resource to the terminal, instruct the base station to allocate the discovered resource and send the discovered resource to the terminal, or instruct the base station to allocate the discovered resource to the terminal and send the discovered resource to the terminal, so that the base station sends the discovered resource to the terminal using a Radio Resource Control (RRC) message. 
     
     
       20. The management entity according to  claim 18 , wherein the second request is an S1-Application Protocol (S1-AP) message comprising an indication that is used to instruct the base station to allocate the discovered resource, instruct the base station to allocate the discovered resource to the terminal, instruct the base station to allocate the discovered resource and send the discovered resource to the management entity, instruct the base station to allocate the discovered resource to the terminal and send the discovered resource to the management entity, wherein the discovered resource that is sent by the base station is received using a container, and wherein the discovered resource is sent to the terminal using a non-access stratum message.